Development on the stable version has basically stopped and we are now giving the final touches to the user documentation. We're holding off the release until we have the documentation because we believe documentation is as important for a package as the code of the application itself, and we're also trying to make sure that it is as high-quality as pLog itself. My guess is that maybe in one or two weeks everything will be ready. When we make the final release I'll carefully detail the changes since the last plog-devel release, but don't worry, there won't be many.
On a related note, I would like to remind you that you can still help and translate pLog to your language. If no other language is added, pLog will be released translated to Spanish, Catalan, Italian (partly), Portuguese (partly), Russian and Chinese.